Elimination of flux-transformer crosstalk in multichannel SQUID magnetometers

Hermanus J.M. ter Brake; F.H. Fleuren; J.A. Ulfman; Jakob Flokstra

doi:10.1016/0011-2275(86)90166-9

Elimination of flux-transformer crosstalk in multichannel SQUID magnetometers

Hermanus J.M. ter Brake, F.H. Fleuren, J.A. Ulfman, Jakob Flokstra

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Abstract

Multichannel SQUID magnetometers are being developed for signal-field mapping in biomagnetic experiments. A problem that becomes more serious as the number of channels is increased is the crosstalk caused by the mutual inductances between the individual sensing coils. A simple and effective method for eliminating this crosstalk is presented in this Paper. The method is based on a rearrangement of the feedback loops which causes the flux-transformer circuits to become currentless. The feasibility of the method is verified experimentally.

Original language	Undefined
Pages (from-to)	667-670
Journal	Cryogenics
Volume	26
Issue number	12
DOIs	https://doi.org/10.1016/0011-2275(86)90166-9
Publication status	Published - 1986

Keywords

magnetometers
magnetic fields
SQUIDs
IR-69713

Access to Document

10.1016/0011-2275(86)90166-9

Brake86elimination

Cite this

@article{62618769460c489ba863b01dbc937266,

title = "Elimination of flux-transformer crosstalk in multichannel SQUID magnetometers",

abstract = "Multichannel SQUID magnetometers are being developed for signal-field mapping in biomagnetic experiments. A problem that becomes more serious as the number of channels is increased is the crosstalk caused by the mutual inductances between the individual sensing coils. A simple and effective method for eliminating this crosstalk is presented in this Paper. The method is based on a rearrangement of the feedback loops which causes the flux-transformer circuits to become currentless. The feasibility of the method is verified experimentally.",

keywords = "magnetometers, magnetic fields, SQUIDs, IR-69713",

author = "{ter Brake}, {Hermanus J.M.} and F.H. Fleuren and J.A. Ulfman and Jakob Flokstra",

year = "1986",

doi = "10.1016/0011-2275(86)90166-9",

language = "Undefined",

volume = "26",

pages = "667--670",

journal = "Cryogenics",

issn = "0011-2275",

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T1 - Elimination of flux-transformer crosstalk in multichannel SQUID magnetometers

AU - ter Brake, Hermanus J.M.

AU - Fleuren, F.H.

AU - Ulfman, J.A.

AU - Flokstra, Jakob

PY - 1986

Y1 - 1986

N2 - Multichannel SQUID magnetometers are being developed for signal-field mapping in biomagnetic experiments. A problem that becomes more serious as the number of channels is increased is the crosstalk caused by the mutual inductances between the individual sensing coils. A simple and effective method for eliminating this crosstalk is presented in this Paper. The method is based on a rearrangement of the feedback loops which causes the flux-transformer circuits to become currentless. The feasibility of the method is verified experimentally.

AB - Multichannel SQUID magnetometers are being developed for signal-field mapping in biomagnetic experiments. A problem that becomes more serious as the number of channels is increased is the crosstalk caused by the mutual inductances between the individual sensing coils. A simple and effective method for eliminating this crosstalk is presented in this Paper. The method is based on a rearrangement of the feedback loops which causes the flux-transformer circuits to become currentless. The feasibility of the method is verified experimentally.

KW - magnetometers

KW - magnetic fields

KW - SQUIDs

KW - IR-69713

U2 - 10.1016/0011-2275(86)90166-9

DO - 10.1016/0011-2275(86)90166-9

M3 - Article

SN - 0011-2275

VL - 26

SP - 667

EP - 670

JO - Cryogenics

JF - Cryogenics

IS - 12

ER -